Farm-gate



--I; BUSH. Farm-Gate.

No. 225,686. Patented Mar. 23, 1880.

@QK gg mmeww Fi m. PNOTD-UTHOGRAPHER, WASHINGTON. D. C.

.- UNITED STATES PATENT OF ICE.

ISAAC BUSH, OF DES MOINES. IOWA.

FARM-GATE.

SPECIFICATION forming part of Letters Patent No. 225,686, dated March 23, 1880.

Application filed August 2, 1879.

To all whom it may concern Be it known that I, ISAAC BUsI-I, of Des Moines, Iowa, have invented an Improved Farm-Gate, of which the following is a specification.

My invention relates to that class of gates in which the wheel of an approaching vehicle is designed tocome in contact with a crank to operate the mechanism that will automatically open and close the gate, and allow persons to pass with a wagon and team without stopping or touching the gate.

It consists in forming arranging, and combining an oscillating and reversible inclined plane with a gate-post, a hinged gate, and operating cranks and rods in the manner hereinafter fully set forth.

Figure l of my drawings is a side view showing a section of my gate when in a closed position. Fig. 2 is a transverse View through the line a: w of Fig. 1, showing a face of the gate-post and the operating mechanism attached thereto. Fig. 3 is a perspective view showing the complete gate in a closed position. Together they clearly illustrate the construction and operation of my complete invention.

a a are fixed gate-posts. b b are gate-bearing arms rigidly fixed to one of the posts a, one near its top and the other near the surface of the ground. They project horizontally toward the mating gate-post on the opposite side of the passage-way','to which the gate is latched when closed.

0 0 are the end pieces of a gate thatis hinged to the arms I) by means of a rod, 01, that con nects the free ends of the arms and passes through suitable bearings formed in or attached to the gate.

f is my oscillating and reversible inclined plane, in the form of a segment of a circle, the center of which circle is in the vertical rod (1. It is pivoted to the gate-post a by means of a shaft that extends therefrom and passes through the post and suitable bearings formed in or attached to the post; or it may be pivoted to the post in any suitable way that will bring it into concentric position relative to the vertical rod 01, to which the swinging gate is pivoted, and that will allow it to oscillate.

g is a roller that rests and travels upon the by means of the connecting-rod a.

track formed by the inclined plane f. Itis carried on the end of an arm, h, that is rigidly fixed to the end of the gate in such a manner that it will extend toward the depressed end of the inclined plane when the gate is closed and allow the roller carried on its free end to rest upon the plane.

k is a forked lever in a vertical position and at right angles relative to the inclined plane f, to which the ends of its branches are rigidly fixed by means of screw-bolts, or in any suitable way. It has a slot or bridle, Z, at its lower end.

or is a double crank in the form of a straight bar pivoted to the lower, portion of the post a. It is connected with the forked lever 70 and a triple crank, No. 1, placed at the roadside some distance from the gate, by means of a connectingrod, n, that extends from the triple crank to the double crank, and is then bent at-right angles to pass through a perforation in the end of the crank m, and also through the bridle l of the lever 70.

n is a rod connecting the lower end of the double crank mwith a second triple crank, No. 2, placed on the opposite side of the gate relative to the crank No. 1, and at an increased distance therefrom, as required, to allow the gate to swing toward it before the horses attached to a vehicle approach too close to interfere with the movement of the gate.

r and s are anti-friction rollers, fixed to the gate in such positions relative to the rod 11, to which the gate is pivoted, that they will be at the opposite ends and also on opposite sides of the rod to facilitate an up-and-down motion of the gate and to retain the gate perpendicular, as required, to prevent it from binding on its pivotal support 01.

In the practical operation of my invention thus constructed and applied, when a vehicle is approaching the gateway from the side upon which the triple crank No. l is located the front wheel of the vehicle is designed to strike the part that projects upward and turn it down, and by so doing move the upper end of the double crank min the same direction The lower end of the lever is will be thereby carried in the same direction, and in so doing will reverse the position of the inclined plane f and lift the gate; and when the gate is thus elevated its Weight, bearing upon the roller g, will cause that roller to descend on the inclined plane and the gate to swing open to allow the vehicle to pass and to come into contact with the second triple crank, No. 2, to produce a reverse movement of the operatin g mechanism, as required,to automatically close the gate.

The movements of the operating devices and the gate will be always the same, regardless of the direction the vehicles move as they pass through, so that persons can drive through the gateway from either direction without stopping to open or close the gate, that is automatically operated, opened, and closed by power and motion applied to the triple cranks Nos. 1 and 2 from the carriage-wheels that successively come in contact therewith.

I am aware that a gate has been hinged to a fixed post by means of a vertical rod and gate-bearing arms extending from the post and rods or arms extending toward the post from the end of the gate; that anti-friction rollers have been used to facilitate the upand-down motion of a hinged gate, and that a lever having a cross-head of semicircular form has been pivoted to a post to perform the function of a reversible incline; but my manner of hinging a gate by means of arms extending from a post over the top and bottom of a gate, and a vertical rod and anti friction rollers on opposite sides and at opposite ends of the rod, and my manner of operating the gate so hinged by means of a reversible inclined plane, a lever having a bridle, and a double and two triple cranks, is novel and greatly advantageous.

I claim- 1. The combination of the pivoted and reversible incline f, extending from a fixed post, the roller g, carried on a bearer extending from a hinged gate, a lever, 70, having a bridle, l, and a double crank, m, substantially as and for the purposes shown and described.

The post a, having arms I) b, the rod (1, a gate carrying anti-friction rollers r and s on opposite sides and at opposite ends of the pivotal rod 0?, the pivoted and reversible incl ined plane f, the roller g, carried by a bearer, h, extending from the gate, the lever 70, having a bridle, l, the double crank m, the triple cranks Nos. 1 and 2, and the connecting-rods n and n, arranged and combined substantially as shown and described, to operate in the manner and for the purposes set forth.

ISAAC BUSH.

Witnesses:

FRANK W. HEERS, G110. A. SMITH. 

